Patent application number | Description | Published |
20090204270 | METHOD AND SYSTEM FOR REDUNDANT MANAGEMENT OF FANS WITHIN A SHARED ENCLOSURE - A method for providing redundant management of fans within a shared enclosure, comprising: detecting for an abnormal cooling condition in an enclosure configured for housing a first server having a first fan and a second server having a second fan; operating the first fan and the second fan to run at a nominal power state; and enabling the first server to assert the first fan to operate from the nominal power state to the high power state while enabling the first server to unconditionally force the second fan of the second server to operate from the nominal power state to a high power state through an overriding mechanism in the second server when the abnormal cooling condition is detected in the enclosure, the overriding mechanism being coupled to the first server. | 08-13-2009 |
20090300216 | APPARATUS, SYSTEM, AND METHOD FOR REDUNDANT DEVICE MANAGEMENT - An apparatus, system, and method are disclosed for redundant device management. The apparatus is provided with a plurality of modules configured to functionally execute the necessary steps of receiving a communication message, determining whether an address associated with the communication message designates a local processor as a destination for the communication message, wherein the address is stored in an address field associated with the communication message, and transmitting the communication message to a remote device. These modules in the described embodiments include a transmitter module, a receiver module, and an addressing module. | 12-03-2009 |
20100180067 | SYSTEM FOR EMULATING AND EXPANDING A SPI CONFIGURATION ROM FOR IO ENCLOSURE - The present disclosure is directed to a method for providing serial peripheral interface (SPI) access in an IO enclosure. The method may comprise receiving a SPI access request at a bus interface unit; sending the SPI access request to a register bus, the register bus connecting an internal ROM, at least one status register, and at least one control register; fetching from the internal ROM when the SPI access request is a read request for configuration information; reading from the at least one status register when the SPI access request is a read request for at least one of an indicator, a sensor, or a controller within the IO enclosure; and writing to the at least one control register when the SPI access request is a write request for at least one of the indicator, the sensor, or the controller within the IO enclosure. | 07-15-2010 |
20100312942 | Redundant and Fault Tolerant control of an I/O Enclosure by Multiple Hosts - An apparatus, system, and method are disclosed for reliably controlling an I/O enclosure. A bus module receives two or more Peripheral Component Interconnect Express (“PCIe”) sideband signals via one or more PCIe cables. The one or more PCIe cables are connected between one or more hosts and an I/O enclosure. A decode module determines an asserted value of each of the two or more PCIe sideband signals and combines the PCIe sideband signal asserted values to form a bus value. Each PCIe sideband signal represents a bit in the bus value, and the bus value specifies a command for controlling the I/O enclosure. An execution module executes the specified command to perform control actions on the I/O enclosure. | 12-09-2010 |
20120159069 | Concurrently Moving Storage Devices from One Adapter Pair to Another - A mechanism is provided for moving control of storage devices from one adapter pair to another. In a trunked disk array configuration, moving the storage devices from one disk array to another disk array begins by attaching the downstream ports of the two independent disk arrays together. The mechanism redefines one set of the ports as upstream ports and through switch zoning makes a set of devices available to the second disk array adapters. By controlling zoning access and performing discovery one device port at a time, the mechanism transfers access and ownership of the RAID group from one adapter pair to another. | 06-21-2012 |
20140244876 | DATA PROCESSING LOCK SIGNAL TRANSMISSION - In accordance with one aspect of the present description, a node of the distributed computing system has multiple communication paths to a data processing resource lock which controls access to shared resources, for example. In this manner, at least one redundant communication path is provided between a node and a data processing resource lock to facilitate reliable transmission of data processing resource lock signals between the node and the data processing resource lock. Other features and aspects may be realized, depending upon the particular application. | 08-28-2014 |
20140245387 | DATA PROCESSING LOCK SIGNAL TRANSMISSION - In accordance with one aspect of the present description, a node of the distributed computing system has multiple communication paths to a data processing resource lock which controls access to shared resources, for example. In this manner, at least one redundant communication path is provided between a node and a data processing resource lock to facilitate reliable transmission of data processing resource lock signals between the node and the data processing resource lock. Other features and aspects may be realized, depending upon the particular application. | 08-28-2014 |
20140282428 | EMBEDDING AND EXECUTING TRACE FUNCTIONS IN CODE TO GATHER TRACE DATA - Provided are a computer program product, system, and method for embedding and executing trace functions in code to gather trace data. A plurality of trace functions are embedded in the code. For each embedded trace function, a trace level is included indicating code to which the trace applies. The trace level comprises one of a plurality of levels. During the execution of the code, the embedded trace functions having one of the levels associated with a specified at least one level specified are executed. The embedded trace functions associated with at least one level not comprising one of the at least one specified level are not invoked. | 09-18-2014 |
20140344300 | EFFICIENT LOGGING OF PROCESSING PEAKS IN CONTROL SYSTEMS - A method for efficient logging in a control system is provided. A temporary history record corresponding to a message transaction placed onto a message queue data structure is generated. A total processing time for the received message transaction is determined. The total processing time is compared with a previously determined peak processing time value. In response to determining that the total processing time exceeds the previously determined peak processing time value, the temporary history record corresponding to the received message transaction is stored in an event log. | 11-20-2014 |
20140372426 | FILTERING EVENT LOG ENTRIES - A method for efficient logging in a control system is provided. A first plurality of registers, frequently accessed registers, is identified. A request is received from a server to access at least one of the first plurality of registers. The request includes a second plurality of registers and a plurality of data values to be stored in the second plurality of registers. At least some registers included in the request are frequently accessed registers. A third plurality of registers is identified based on predetermined criteria for inclusion. The third plurality of registers is a subset of the second plurality of registers storing a corresponding subset of the plurality of data values. A log entry is stored in an event log file corresponding to each data value included the third plurality of registers. | 12-18-2014 |